SPATIAL VARIATION OF SALINE-ALKALIZED LAND IN WESTERN JILIN PROVINCE AND COUNTERMEASURES FOR ITS PREVENTION AND TREATMENT
PANG Zhi-guo1, LI Ji-ren1, LI Qu-sheng2
1. China Institute of Water Resources and Hydropower Research, Beijing 100044, China;
2. Northeast Institute of Geography and Agricultural Ecology, CAS, Changchun 130012, China
Using such new techniques as remote sensing and GIS, the authors obtained the newest statistical data on the saline alkalized land conditions of 1980s and middle and late 1990s in western Jilin Province. Based on spatial analysis, it is concluded that the area of the saline alkalized land has been uninterruptedly expanded in recent 20 a, accompanied by the deterioration of the land quality, and that the development of salinization and alkalization is characterized by phase and time sequential variations. Finally, some countermeasures for prevention and treatment of saline alkalized land are put forward in the light of economic management and ecological engineering.
庞治国, 李纪人, 李取生. 吉林西部盐碱化土地空间变化及防治措施[J]. 国土资源遥感, 2004, 16(2): 56-60.
PANG Zhi-guo, LI Ji-ren, LI Qu-sheng . SPATIAL VARIATION OF SALINE-ALKALIZED LAND IN WESTERN JILIN PROVINCE AND COUNTERMEASURES FOR ITS PREVENTION AND TREATMENT. REMOTE SENSING FOR LAND & RESOURCES, 2004, 16(2): 56-60.
[8] Corwin D L, Loague K (ed.).Applications of GIS to the Modeling of Non-point Source Pollutants in the Vadouse Zone [C].Madison, WI: Spec. Publ. 48. SSSA, 1996.
[9] Corwin D L, Rhoades J D.The Use of Computer-assisted Mapping Techniques to Delineate Potential Areas of Salinity Development in Soils: II. Field Verification of the Threshold Model Approach [C].Hilgardia,1988.
[10] Dennis L, Corwin, Peter J, et al..Modeling Non-point Source Pollutants in the Vadose Zone with GIS[J].Environmental Science & Technology, 1997, 31(8): 2157-2175.